I decided not to attach a light to my FNX45 tac bc I do not fully understand its use. Lets say someone is in your house at night or your in a dark building. Doesn't a light give away your position? The gun has tritium night sights so its not needed to aim. If you thought someone was hiding in a dark corner or room can't you just light it up with the first couple shots anyway. I see the use if your a police officer who must be ridiculously passive in today's communist society in America and you need to see that gun in the guy's hands who is trying to kill you. But I mean just for an ordinary civilian in a self defense situation when would this light be of use? I can only see it as a disadvantage because everyone knows where you are and its also something to get snagged on your holster or clothes on the draw. I'm curious so I ask: people who have lights -why? Help me understand. Thanks.